Construction structure and method for rapid installation of basement escalators under complex conditions

Abstract

This invention discloses a construction structure for the rapid installation of basement escalators under complex conditions. The structure includes an underground space, a "gate"-shaped prefabricated bracket fixed to the top of a concrete roof slab, an electric hoist installed on one side of an underground shear wall, the hoist being connected to a first chain passing through the "gate"-shaped prefabricated bracket and the escalator installation hole, a pulley system hoisted onto the "gate"-shaped prefabricated bracket, the pulley system being connected to a second chain passing through the escalator installation hole, and a universal wheel sliding plate at the bottom of the escalator. This invention also discloses a construction method for the rapid installation of basement escalators under complex conditions, including: 1. fixing the "gate"-shaped prefabricated bracket with guy ropes; 2. placing the universal wheel sliding plate at the bottom of the rear end of the escalator; 3. installing the electric hoist and the first chain on the underground shear wall; 4. simultaneously releasing the pulley system while the electric hoist pulls the escalator forward; S5. the escalator is installed in place. This invention solves the problems of lack of cranes and limited installation workspace in basements, and can be widely applied in underground construction.

Description

Technical Field

[0001] This invention relates to underground engineering, and in particular to a construction structure and method for rapidly installing basement escalators under complex conditions. Background Technology

[0002] With the continuous improvement of domestic construction standards, building designs and the number of underground structural layers are increasing, and underground ancillary facilities are becoming more complex, thus increasing the difficulty of installing underground ancillary equipment. Escalators are a common ancillary facility in basements. Traditionally, escalator installation involves direct hoisting using cranes. However, when basement escalator installation conditions are complex and crane installation is not feasible, the steel structure glass curtain wall installation at the escalator entrance is often completed first due to limited work surface space. In this case, the basement ceiling cannot withstand crane operations, and the height difference between the basement floor slab and the escalator pit can be several meters or even tens of meters. This significant height difference, large escalator installation angle, and the escalator's weight drastically increase the installation difficulty. How to successfully install escalators in confined spaces without cranes while ensuring economical and efficient operation is a problem that the industry urgently needs to solve. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the above-mentioned background technology and provide a construction structure and method for rapid installation of basement escalators under complex conditions, which can be applied to the installation of escalators in multi-story underground spaces. This solves the problems of lack of cranes in basements, small installation work areas, high risk factors, and inability to guarantee the construction period, thereby improving the efficiency of escalator installation while ensuring the safety of installation workers.

[0004] This invention provides a construction structure for the rapid installation of basement escalators under complex conditions, comprising an underground space consisting of an underground shear wall, a ground floor supported on the underground shear wall, a concrete roof slab supported on underground concrete columns, and a steel frame curtain wall supported on the ground floor. The underground shear wall and the concrete roof slab are arranged opposite each other. The concrete roof slab is located at the entrance of the steel frame curtain wall. A "door"-shaped prefabricated bracket is fixed to the top of the concrete roof slab. An electric hoist is provided on the side of the underground shear wall closest to the "door"-shaped prefabricated bracket facing the "door"-shaped prefabricated bracket. The electric hoist is connected to a first chain that passes through the installation hole at the front end of the escalator. The first chain passes through the door frame of the "door"-shaped prefabricated bracket. A pulley block is suspended from the top of the "door"-shaped prefabricated bracket. The pulley block is connected to a second chain that passes through the installation hole of the escalator. A universal wheel sliding plate is provided at the bottom of the escalator.

[0005] In the above technical solution, the underground shear wall is provided with embedded parts for connecting electric hoists, the inner wall of the steel structure frame curtain wall and the ground floor at the entrance of the steel structure frame curtain wall are respectively provided with embedded parts, and the embedded parts of the inner wall of the steel structure frame curtain wall and the ground floor are respectively connected to the top two sides of the "gate"-shaped prefabricated bracket by guy ropes to improve the stability of the "gate"-shaped prefabricated bracket.

[0006] In the above technical solution, the bottom of the escalator body is also provided with multiple rolling round tubes.

[0007] In the above technical solution, the "gate"-shaped prefabricated bracket has two "U"-shaped grooves fixed to the top of the concrete roof slab. Each "U"-shaped groove has a base on its top surface, and each base has a column on its top. The two columns have a main crossbeam on their tops, forming a "gate"-shaped structure. Each column has symmetrical ear plates on its top. The two symmetrical ear plates are connected to the embedded parts on the inner wall of the steel structure frame curtain wall and the embedded parts on the ground floor of the entrance of the steel structure frame curtain wall respectively by guy ropes. The middle part of each column is connected to the two ends of the corresponding "U"-shaped groove by symmetrically arranged upper support rods.

[0008] In the above technical solution, the main crossbeam and the two end columns are connected by diagonal support rods.

[0009] In the above technical solution, the axial direction of the main crossbeam is perpendicular to the escalator's moving direction, and the axial direction of the "U"-shaped groove is perpendicular to the axial direction of the main crossbeam.

[0010] In the above technical solution, the underground space floor is provided with a support column that is fixedly connected to the front end of the escalator.

[0011] This invention also provides a construction method for quickly installing basement escalators under complex conditions, comprising the following steps: S1, passing each guy rope through each ear plate, and connecting the guy ropes to the inner wall of the steel frame curtain wall and the ground floor at the entrance of the steel frame curtain wall to fix the "gate"-shaped prefabricated bracket; S2, placing the universal wheel slide plate at the bottom of the rear end of the escalator; S3, installing an electric hoist on the side of the underground shear wall facing the "gate"-shaped prefabricated bracket, with the first chain passing through the installation hole of the escalator and connected to the electric hoist; S4, the electric hoist pulls the escalator through the "gate"-shaped prefabricated bracket to the height of the concrete top slab, suspending a pulley block at the top of the "gate"-shaped prefabricated bracket, with the second chain passing through the installation hole of the escalator and connected to the pulley block, and simultaneously releasing the pulley block while the electric hoist pulls the escalator forward to slow down and control the escalator's descent speed; S5, slowly placing the front end of the escalator on the support column on the ground of the underground space, installing the escalator in place, and firmly fixing the support column to the escalator to complete the escalator installation.

[0012] The above technical solution also includes step S0: before the escalator is installed, the two "U"-shaped grooves are fixed to the top of the concrete roof slab with expansion bolts, the main beam, column and base are installed in sequence, and then the diagonal support rod and upper support rod are installed and fixed to the "U"-shaped groove to form a "door"-shaped prefabricated bracket.

[0013] In the above technical solution, in step S1, before the guy rope passes through the ear plate, embedded parts are respectively installed in the inner wall of the steel structure frame curtain wall and the ground layer at the entrance of the steel structure frame curtain wall. After the guy rope passes through the ear plate, the guy rope is connected to the embedded parts in the inner wall of the steel structure frame curtain wall and the embedded parts in the ground layer at the entrance of the steel structure frame curtain wall. In step S3, before installing the electric hoist, embedded parts are installed on the side of the underground shear wall facing the "door" shaped prefabricated bracket.

[0014] The construction structure and method for rapid installation of basement escalators under complex conditions, as described in this invention, have the following beneficial effects:

[0015] I. This invention achieves safe and stable installation of escalators by combining the auxiliary support function of the "door"-shaped prefabricated bracket, the traction function of the electric hoist, and the slow release of the escalator's weight using pulley blocks.

[0016] Second, the operation of this invention relies on the existing working environment and has minimal impact on the surrounding environment. It can achieve stable installation at the designated installation point, overcoming the adverse effects of narrow operating surface, limited working space, and complex environment, and effectively solving the installation problem caused by construction site limitations.

[0017] Third, in the face of installation environments with great height and steep slope, this invention utilizes the pulley block lowering device on the "gate"-shaped prefabricated bracket to precisely control the speed and position of the escalator falling from the slope, ensuring the installation accuracy and efficiency of the escalator installation process.

[0018] Fourth, the auxiliary materials used in this invention, such as the "gate"-shaped prefabricated bracket, pulley system, and embedded parts, can all be reused, reducing resource waste. Meanwhile, all assembly work is done manually, which not only reduces reliance on specific equipment but also solves the problem of difficulty in reinforcement due to the lack of suitable stress points, further improving the flexibility and efficiency of construction. Attached Figure Description

[0019] Figure 1 A schematic diagram of the construction structure for the rapid installation of a basement escalator under complex conditions when the escalator is initially pulled;

[0020] Figure 2 A front view of the construction structure for the rapid installation of a basement escalator under complex conditions when the escalator enters an underground space, according to the present invention.

[0021] Figure 3 for Figure 2 A schematic diagram of direction A;

[0022] Figure 4 This is a front view of the "door" shaped prefabricated support structure in the construction structure for rapid installation of basement escalators under complex conditions according to the present invention.

[0023] Figure 5 This is a side view of the "door" shaped prefabricated support structure in the construction structure for rapid installation of basement escalators under complex conditions according to the present invention.

[0024] Figure 6 This is a schematic diagram of the construction method for rapidly installing basement escalators under complex conditions according to the present invention;

[0025] Figure 7 This is a schematic diagram of the construction structure for the rapid installation of a basement escalator under complex conditions, as per the present invention, after the escalator installation is completed. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, but these embodiments should not be construed as limiting the present invention.

[0027] The basement escalator 20 is located in an area with complex terrain, making it impossible to use a crane for installation. Traditional pile installation methods cannot meet the requirements of crane lifting and hoisting on the basement roof slab due to its design load. In addition, manual labor cannot be used efficiently. Therefore, a construction scheme for rapid installation of basement escalators under complex conditions is designed.

[0028] The present invention involves first assembling a "gate"-shaped prefabricated support frame 19, fixing the "gate"-shaped prefabricated support frame 19 with guy ropes 10, and then installing embedded parts 9 at the underground shear wall 15, the steel structure frame curtain wall 17 and their entrances. An electric hoist 11 is installed at the front end of the escalator 20 to pull the escalator 20. Rolling round tubes 7 and universal wheel slides 6 are respectively installed at the bottom of the escalator 20. When the escalator 20 is pulled to the slope, the pulley group 12 installed on the "gate"-shaped prefabricated support frame 19 pulls the bottom of the escalator 20. The electric hoist 11 and the pulley group 12 act on the escalator 20 in two directions, one positive and one negative, to make it slowly descend. Finally, the escalator 20 is aligned with the support column 18 and installed and fixed.

[0029] The present invention relates to a construction structure for the rapid installation of basement escalators under complex conditions, which involves the use of a "door"-shaped prefabricated bracket 19, an electric hoist 11, a pulley block 12, and embedded parts 9 in the space.

[0030] See Figures 1 to 3This invention discloses a construction structure for the rapid installation of basement escalators under complex conditions. The structure comprises an underground space consisting of an underground shear wall 15, a ground floor 14 supported on the underground shear wall 15, a concrete roof slab 16 supported on underground concrete columns, and a steel frame curtain wall 17 supported on the ground floor 14. The underground shear wall 15 and the concrete roof slab 16 are positioned opposite each other. The concrete roof slab 16 is located at the entrance of the steel frame curtain wall 17. A "door"-shaped prefabricated bracket 19 is fixed to the top of the concrete roof slab 16. In one or more embodiments, embedded parts 9 are respectively provided on the inner wall of the steel frame curtain wall 17 and on the ground floor 14 at the entrance of the steel frame curtain wall 17. The embedded parts 9 on the inner wall of the steel frame curtain wall 17 and the ground floor 14 are respectively connected to the top two sides of the "door"-shaped prefabricated bracket 19 via guy ropes 10. To improve the stability of the "gate"-shaped prefabricated support 19; an electric hoist 11 is provided on the side of the underground shear wall 15 closest to the "gate"-shaped prefabricated support 19 facing the "gate"-shaped prefabricated support 19. In one or more embodiments, the underground shear wall 15 is provided with an embedded part 9 for connecting the electric hoist 11. The electric hoist 11 is connected to a first chain that passes through the mounting hole at the front end of the escalator 20. The first chain passes through the door frame of the "gate"-shaped prefabricated support 19. A pulley block 12 is suspended at the top of the "gate"-shaped prefabricated support 19. The pulley block 12 is connected to a second chain that passes through the mounting hole of the escalator 20. The bottom of the escalator 20 is provided with a universal wheel slide plate 6. In one or more embodiments, multiple rolling round tubes 7 are also provided at the bottom of the body of the escalator 20. The underground space floor is provided with a support column 18 that is fixedly connected to the front end of the escalator 20.

[0031] See Figures 4 to 5 In one or more embodiments, the "gate"-shaped prefabricated bracket 19 has two "U"-shaped grooves fixed to the top of the concrete roof slab 16. Each "U"-shaped groove has a base 13 on its top surface, and each base 13 has a column 2 on its top. The two columns 2 have a main horizontal beam 1 on their tops, forming a "gate"-shaped structure. In a further embodiment, each column 2 has symmetrical ear plates 5 on its top. The two symmetrical ear plates 5 are connected by guy ropes 10 to embedded parts 9 on the inner wall of the steel frame curtain wall 17 and embedded parts 9 on the entrance ground floor 14 of the steel frame curtain wall 17, respectively. The middle of each column 2 is connected to both ends of the corresponding "U"-shaped groove by symmetrically arranged upper support rods 4. In a further embodiment, the main horizontal beam 1 is connected to the two end columns 2 by diagonal support rods 3. In a further embodiment, the axial direction of the main horizontal beam 1 is perpendicular to the moving direction of the escalator 20, and the axial direction of the "U"-shaped groove is perpendicular to the axial direction of the main horizontal beam 1.

[0032] See Figure 6The present invention provides a construction method for the rapid installation of basement escalators under complex conditions, comprising the following steps:

[0033] S1. Before installing the escalator, assemble the "door"-shaped prefabricated bracket 19 by assembling the main crossbeam 1, column 2, and base 13. Then, install the upper support rod 4 and lower support rod 3 on the door frame. The base 13 and the bottom of the "U"-shaped groove are fixed to the concrete top slab 16 with expansion bolts 8. See [link / reference] Figures 4 to 5 ;

[0034] See Figures 1 to 3 S2. Install embedded parts 9 uniformly. Embedded parts 9 are installed on the inner wall of the steel structure frame curtain wall 17, the ground floor 14 at the entrance of the steel structure frame curtain wall 17, and the underground shear wall 15. The "door" shaped prefabricated bracket 19 is fixed with guy ropes 10. One end of the guy rope 10 is connected to the ear plate 5, and the other end of the guy rope 10 is connected to the embedded parts 9 on the inner wall of the steel structure frame curtain wall 17 and the embedded parts 9 on the ground floor 14 at the entrance of the steel structure frame curtain wall 17, respectively, for fixing the "door" shaped prefabricated bracket 19 and subsequent installation.

[0035] S3. Install the rolling tube 7 and the universal wheel slide plate 6 at the bottom of the escalator 20 to assist in dragging and moving;

[0036] S4. Install an electric hoist 11 on the embedded part 9 on the underground shear wall 15. The first chain passes through the mounting hole of the escalator 20 and is connected to the electric hoist 11 to pull the escalator 20 forward.

[0037] S5. The electric hoist 11 pulls the escalator 20 through the "gate"-shaped prefabricated support 19 to the concrete top slab 16. The pulley block 12 is hoisted on the top of the "gate"-shaped prefabricated support 19 and fixed to the main crossbeam 1. The second chain passes through the mounting hole of the escalator 20 and is connected to the pulley block 12. The pulley block 12 is used to slow down and control the descent speed of the escalator 20. The electric hoist 11 pulls forward while simultaneously releasing the pulley block 12 to slow down and control the descent speed of the escalator 20.

[0038] See Figure 7 S6. Slowly place the front end of the escalator 20 onto the support column 18. The escalator 20 is now in place. Secure the support column 18 to the escalator 20 firmly to complete the installation of the escalator 20.

[0039] This invention can solve the problem of not being able to install escalators 20 using cranes in confined spaces. By manually installing the "door"-shaped prefabricated bracket 19, the installation of escalators 20 can be completed efficiently and stably in small underground spaces.

[0040] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0041] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

Claims

1. A construction structure for rapid installation of basement escalators under complex conditions, comprising an underground space consisting of an underground shear wall (15), a ground floor (14) supported on the underground shear wall (15), a concrete roof slab (16) supported on underground concrete columns, and a steel frame curtain wall (17) supported on the ground floor (14), wherein the underground shear wall (15) and the concrete roof slab (16) are arranged opposite to each other, and the concrete roof slab (16) is located at the entrance of the steel frame curtain wall (17), characterized in that: The concrete roof slab (16) is fixed with a "door" shaped prefabricated bracket (19). The underground shear wall (15) closest to the "door" shaped prefabricated bracket (19) is provided with an electric hoist (11) on the side facing the "door" shaped prefabricated bracket (19). The electric hoist (11) is connected to a first chain that passes through the mounting hole at the front end of the escalator (20). The first chain passes through the door frame of the "door" shaped prefabricated bracket (19). A pulley block (12) is suspended from the top of the "door" shaped prefabricated bracket (19). The pulley block (12) is connected to a second chain that passes through the mounting hole of the escalator (20). The bottom of the escalator (20) is provided with a universal wheel slide plate (6).

2. The construction structure for rapid installation of basement escalators under complex conditions as described in claim 1, characterized in that: The underground shear wall (15) is provided with embedded parts (9) for connecting electric hoists (11). The inner wall of the steel structure frame curtain wall (17) and the ground floor (14) at the entrance of the steel structure frame curtain wall (17) are respectively provided with embedded parts (9). The embedded parts (9) of the inner wall of the steel structure frame curtain wall (17) and the ground floor (14) are respectively connected to the top two sides of the "door" shaped prefabricated bracket (19) through guy ropes (10) to improve the stability of the "door" shaped prefabricated bracket (19).

3. The construction structure for rapid installation of basement escalators under complex conditions as described in claim 2, characterized in that: The escalator (20) also has multiple rolling round tubes (7) at the bottom of its body.

4. The construction structure for rapid installation of basement escalators under complex conditions as described in claim 3, characterized in that: The "gate" shaped prefabricated bracket (19) has two "U" shaped grooves fixed to the top of the concrete roof slab (16). Each "U" shaped groove has a base (13) on its top surface. Each base (13) has a column (2) on its top. The two columns (2) have a main beam (1) on their tops and form a "gate" shaped structure. Each column (2) has symmetrical ear plates (5) on its top. The two symmetrical ear plates (5) are connected to the embedded parts (9) on the inner wall of the steel frame curtain wall (17) and the embedded parts (9) on the ground floor (14) of the entrance of the steel frame curtain wall (17) respectively by guy ropes (10). The middle part of each column (2) is connected to the two ends of the corresponding "U" shaped groove by symmetrically arranged upper support rods (4).

5. The construction structure for rapid installation of basement escalators under complex conditions as described in claim 4, characterized in that: The main crossbeam (1) is connected to the two end columns (2) by diagonal support rods (3).

6. The construction structure for rapid installation of basement escalators under complex conditions as described in claim 5, characterized in that: The axis of the main crossbeam (1) is perpendicular to the moving direction of the escalator (20), and the axis of the "U"-shaped groove is perpendicular to the axis of the main crossbeam (1).

7. The construction structure for rapid installation of basement escalators under complex conditions as described in claim 6, characterized in that: The underground space is provided with a support column (18) that is fixedly connected to the front end of the escalator (20).

8. A construction method for a construction structure for rapid installation of basement escalators under complex conditions according to claim 7, characterized in that: Includes the following steps: S1. Pass each guy rope (10) through each ear plate (5) and connect the guy rope (10) to the inner wall of the steel frame curtain wall (17) and the ground floor (14) at the entrance of the steel frame curtain wall (17) to fix the "door" shaped prefabricated bracket (19). S2. Place the omnidirectional wheel skateboard (6) at the bottom of the rear end of the escalator (20); S3. Install an electric hoist (11) on the side of the underground shear wall (15) facing the "door" shaped prefabricated bracket (19), and the first chain passes through the mounting hole of the ladder (20) and is connected to the electric hoist (11); S4. The electric hoist (11) pulls the escalator (20) through the "door"-shaped prefabricated support (19) to the concrete top slab (16) at a height. The pulley block (12) is hoisted on the top of the "door"-shaped prefabricated support (19). The second chain passes through the mounting hole of the escalator (20) and is connected to the pulley block (12). When the electric hoist (11) pulls the escalator (20) forward, the pulley block (12) is released simultaneously to slow down and control the falling speed of the escalator (20). S5. Slowly place the front end of the escalator (20) onto the support column (18) on the ground of the underground space, install the escalator (20) in place, and fix the support column (18) and the escalator (20) securely to complete the installation of the escalator (20).

9. The construction method for the construction structure of a basement escalator to be installed quickly under complex conditions as described in claim 8, characterized in that: It also includes step S0, before the escalator (20) is installed, fixing the two "U" shaped grooves to the top of the concrete top plate (16) with expansion bolts (8), installing the main beam (1), column (2) and base (13) in sequence, and then installing the inclined support rod (3) and upper support rod (4), and fixing them to the "U" shaped groove to form a "door" shaped prefabricated bracket (19).

10. The construction method for the construction structure of a basement escalator to be installed quickly under complex conditions according to claim 9, characterized in that: In step S1, before passing the guy rope (10) through the ear plate (5), embedded parts (9) are respectively installed on the inner wall of the steel frame curtain wall (17) and the ground layer (14) at the entrance of the steel frame curtain wall (17). After passing the guy rope (10) through the ear plate (5), the guy rope (10) is connected to the embedded parts (9) on the inner wall of the steel frame curtain wall (17) and the embedded parts (9) on the ground layer (14) at the entrance of the steel frame curtain wall (17). In step S3, before installing the electric hoist (11), the underground shear wall (15) is embedded with a pre-embedded part (9) on the side facing the "door" shaped prefabricated bracket (19).

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